Enterprise library exception: Activation error occured while trying to get instance of type ICacheManager, key?

Question

Using .net 3.5 and Enterprise library 5.0.

From my research, I found a similar issue here: Activation error occured while trying to get instance of type ICacheManager, key "Cache Manager" *** this solution did not fix my issue.

I can't seem to figure it out, my config should be set up correctly, but keep getting the exception? Anyone have similar issues?

I made the suggestion to add cacheManager and reference when I call the cache manager:

using Microsoft.Practices.EnterpriseLibrary.Caching;
using Microsoft.Practices.EnterpriseLibrary.Caching.Expirations;
.....
....
ICacheManager cm = CacheFactory.GetCacheManager("TrackingCacheManager");

The App.config:

<configuration>
    <configSections>
        <section name="dataConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.DatabaseSettings, Microsoft.Practices.EnterpriseLibrary.Data, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="true" />
        <section name="cachingConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Caching.Configuration.CacheManagerSettings, Microsoft.Practices.EnterpriseLibrary.Caching, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="true" />
  </configSections>
     <cachingConfiguration defaultCacheManager="TrackingCacheManager">
        <cacheManagers>
            <add name="TrackingCacheManager" type="Microsoft.Practices.EnterpriseLibrary.Caching.CacheManager, Microsoft.Practices.EnterpriseLibrary.Caching, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
                expirationPollFrequencyInSeconds="120" maximumElementsInCacheBeforeScavenging="1000"
                numberToRemoveWhenScavenging="10" backingStoreName="NullBackingStore" />
        </cacheManagers>
        <backingStores>
            <add type="Microsoft.Practices.EnterpriseLibrary.Caching.BackingStoreImplementations.NullBackingStore, Microsoft.Practices.EnterpriseLibrary.Caching, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
                name="NullBackingStore" />
        </backingStores>
    </cachingConfiguration>
    <dataConfiguration defaultDatabase="ConnectionString" />
    <connectionStrings>
        <add name="ConnectionString" connectionString="server=AFS7BCBRNGQ5O0\DEVELOPMENT;database=EITC_RTS;Integrated Security=True"
            providerName="System.Data.SqlClient" />
    </connectionStrings>
</configuration>

My references:

Answer 1

My guess is that you've setup this configuration in an App.config for your Domain project. But your main project has it's own config file which this configuration must be copied into.

So for example, if your main project was a webapp, then it would have a web.config. The caching configuration you have added to the App.config of the Domain project is not used at runtime. The configuration being used is from main project's config, in this example the web.config.

Copy your Caching configuration from the Domain App.Config to the main config file and it will work.